The Screw,shoulder, cataloged under National Stock Number 5305-01-483-3071, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-483-3071 |
| Primary Part Number | MSB2-5 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Width Across Flats | 2.0 MILLIMETERS NOMINAL MM |
| Head Height | 3.0 MILLIMETERS NOMINAL MM |
| Shoulder Length | 10.0 MILLIMETERS NOMINAL FIRST SHOULDER MM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 3.987 MILLIMETERS NOMINAL FIRST SHOULDER MM |
| Thread Pitch in Millimeters | 0.5 |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 3.0 MILLIMETERS MM |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | MJ |
| Head Diameter | 6.0 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MSB2-5 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| PZM-5-3 | 5/9 Secondary reference W. M. Berg, Inc. |
| 13211656-5 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5305-01-483-3071 is a Screw,shoulder, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-483-3071 has 1 manufacturer part number on file: MSB2-5 (Roller Bearing Co of America, Inc Div Pic Design).
1 possible match (shared part number, not a government interchangeability claim): 6110-01-559-0584. Verify interchangeability with system specifications before substitution.
Key specifications for MSB2-5: Width Across Flats: 2.0 MILLIMETERS NOMINAL MM; Head Height: 3.0 MILLIMETERS NOMINAL MM; Shoulder Length: 10.0 MILLIMETERS NOMINAL FIRST SHOULDER MM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.